This thesis examines firm performance through the dot-com bubble through the lens of executive compensation. Hypotheses based on the theoretical literature of Bolton, Scheinkman and Xiong (2006) as well as Bertrand and Mullainathan (2001) in regards to management compensation in a speculative bubble motivate three regression models with differing market-cap-growth based dependent variables and specific compensation variables. Regression analyses test the models using public compensation and security data from S&P's Execucomp and Compustat databases. Synthesizing regression results show that stock option vesting schedules and executives' status on the board of directors may significantly affect firm performance through the dot-com bubble, but more analysis, using more robust data, is necessary to verify either claim.

This diploma thesis is looking into investments to stocks portfolio by methods of psychologica analysis. Structure of the thesis is consisted of three parts. In the first part there are intruduced necessary theoretical prerequisities for understanding of stock market. Second and third part is focused on practical application and major stock market events from the past. Thesis thus describes and analyses the possibilities of psychological analysis usage while deciding about investments into selected portfolio of securities at capital markets.

Made available in DSpace on 2016-04-25T18:40:41Z (GMT). No. of bitstreams: 1 Jose Milton Almeida da Silva.pdf: 951427 bytes, checksum: 2eb314059433ac66640426ac17114465 (MD5) Previous issue date: 2009-10-05 / The central goal of this research was to increase the debating about efficacy from rules, legal actions and Corporate governance to protect the non qualified minority shareholders in the Brazilian IPOs (Initial Public Offering) programs. The theme has showed growing interest, because the number of personal investors and the Bovespa s (São Paulo Stock Exchange) IPO market has been in progress strongly. The event study was the methodology used to measure the abnormal returns in the portfolio s samples with between 23 and 98 shares from 106 IPOs going public in 2004-07, using de market price from January, 2004 to June, 2008. Further, four statistic tests were applied to detect if the speculative bubble dynamic affected the Bovespa from January, 1999 to June, 2008. The empiric results from event study evidenced the overpricing phenomenon measured from the offering price to the market price at the end of the first day of trading estimated between 4,80% and 9,26%, and a underpricing phenomenon in the sequel. The cumulative average abnormal returns, ruled out of the first day return, achieved -11,52% at the end of the 6º month, -16,60% at the end of the 12º month and -35,74% at the end of the 24º month, presented a underperfomance phenomenon with economic and statistic significance, widely documented by the academy, specially on the north American capital market. The empiric results from four statistic tests showed, with statistic significance, that speculative bubble dynamic affected the Ibovespa (Index of São Paulo Stock Exchange) in the period from January, 1999 to June, 2008. Thus, evidences were found of the minority shareholders that bought shares in the Bovespa s IPOs programs in the studied period were induced by market anomalies to overpay the share s portfolios. Consequently, the research suggests that actions to improve the rules, legal actions and Corporate governance is necessary to protect of the non qualified minority shareholders in the Brazilian capital market / Esta pesquisa teve como objetivo central ampliar as discussões quanto à eficácia das normas, procedimentos e Governança Corporativa na proteção dos acionistas minoritários não qualificados nos processos de IPO s (Initial Public Offering) ou abertura de capital das companhias no mercado de capitais brasileiro. O tema apresenta importância crescente em face do recente aumento do número de investidores individuais e do forte incremento do mercado de IPO s na Bolsa de Valores de São Paulo (Bovespa). A metodologia empregada foi um estudo de evento para a identificação da presença de retornos anormais em carteiras compostas por uma amostra entre 23 e 98 ações de um total de 106 IPO s realizados na Bovespa entre 2004 e 2007, abrangendo as cotações das ações no período entre janeiro de 2004 e junho de 2008. Também foram realizados quatro testes estatísticos visando detectar indícios da presença da dinâmica de bolha especulativa na Bovespa no período entre janeiro de 1999 e junho de 2008. Os resultados empíricos do estudo de evento demonstraram evidências de sobre-valorização nos preços das ações no primeiro dia de negociação, com retornos anormais entre 4,80% e 9,26%, seguida de significativas quedas nas cotações subseqüentes. Os retornos anormais médios acumulados, excluído o retorno do 1° dia, atingiram -11,52% no final do 6º mês, -16,60% no final do 12º mês e -35,74% no final do 24º mês, evidenciando relevantes perdas de valor das carteiras analisadas no período, tanto em termos econômicos quanto em nível de significância estatística, caracterizando o fenômeno da underperformance, amplamente documentado pela academia, notadamente no mercado de capitais norte-americano. Os resultados dos testes estatísticos demonstraram indícios, com significância estatística, da presença da dinâmica de bolha especulativa na formação do Índice da Bolsa de Valores de São Paulo (Ibovespa) no período entre janeiro de 1999 e junho de 2008. Desse modo, foram encontradas evidências de que os acionistas minoritários que participaram dos processos de IPO s na Bovespa no período estudado foram induzidos, por anomalias de mercado, ao pagamento de valores acima dos preços justos das carteiras de ações. Como conseqüência, a pesquisa sugere a necessidade do aperfeiçoamento dos mecanismos de proteção dos acionistas minoritários não qualificados no mercado de capitais brasileiro

The aim of this thesis is to analyse the current situation on the precious metals market, above all of gold and silver, as metals with an interesting past and future. The result should be a current view of both markets and their unique differences. The first part is devoted to the characteristics of gold and silver, their utilisation and outlook of new applications as a consequence of developing industrial branches in the new millennium. The second part is a more detailed view of the market and an analysis of the aspect of supply and demand of both theese metals and differences that influence their price. The third part brings together the main factors shaping this market and introduces some indicators eligible to watch these markets. The conclusion presents an evaluation of the discussed conclusions in a broader perspective.